CN103896480B - A kind of heavy caliber silica tube method for annealing and annealing furnace - Google Patents
A kind of heavy caliber silica tube method for annealing and annealing furnace Download PDFInfo
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- CN103896480B CN103896480B CN201410071044.3A CN201410071044A CN103896480B CN 103896480 B CN103896480 B CN 103896480B CN 201410071044 A CN201410071044 A CN 201410071044A CN 103896480 B CN103896480 B CN 103896480B
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Abstract
A kind of heavy caliber silica tube method for annealing, heavy caliber silica tube is placed in annealing furnace, temperature in annealing furnace is at the uniform velocity warming up to 300 DEG C, 600 DEG C, 900 DEG C with the speed of 15 ~ 25 DEG C/min, each temperature section insulation 50-60 minute, when being finally warming up to 1150 DEG C, is incubated 10 ~ 20 minutes, in time naturally cooling to below 200 DEG C, come out of the stove, complete annealing process, whole technique adopts the annealing furnace being suitable for heavy caliber silica tube.The present invention, by carrying out cascade raising temperature to the silica tube of annealing furnace, ensure that the thermostability of silica tube; By establishing opening for feed and lifting furnace door on the sidewall of furnace chamber, convenient placement heavy caliber silica tube; By establishing pivot arm and balancing weight, the smooth open and close of easy of rise fire door; If high temperature brick and insulating cotton, in guarantee furnace chamber, while good heats, reduce the consumption of the energy; Whole apparatus structure is simple, easy to operate, is specially adapted to the annealing process of heavy caliber silica tube or large size quartz products.
Description
Technical field
The present invention relates to a kind of silica tube processing units, particularly a kind of heavy caliber silica tube method for annealing and annealing furnace.
Background technology
Glass sand is through high-temperature fusion, after being molded into silica tube, owing to there is the larger temperature difference, thermal stresses can be produced in silica tube in natural cooling process, the existence of thermal stresses reduces optical homogeneity and the shock resistance of silica tube, therefore, stress relieving need be carried out, to improve the physicals of silica tube to the silica tube after shaping.Current existence is to the annealing device of small-bore silica tube, but because silica tube specification is different, also variant to the processing requirement of annealing, small-bore silica tube annealing device does not reach requirement, and existing large size silica tube annealing furnace, just improve annealing furnace, structure is comparatively complicated, and annealing cost is higher.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of reasonable in design, heavy caliber silica tube method for annealing easy to use.
Another technical problem to be solved by this invention is for the deficiencies in the prior art, and provide a kind of reasonable in design, structure is simple, the annealing furnace of easy to operate heavy caliber silica tube method for annealing.
Technical problem to be solved by this invention is realized by following technical scheme, the present invention is a kind of heavy caliber silica tube method for annealing, be characterized in, heavy caliber silica tube is placed in annealing furnace, temperature in annealing furnace is at the uniform velocity warming up to 300 DEG C with the speed of 15 ~ 25 DEG C/min, is then incubated 50 ~ 60 minutes; At the uniform velocity be warming up to 600 DEG C with the speed of 15 ~ 25 DEG C/min again, be incubated 50 ~ 60 minutes; At the uniform velocity be warming up to 900 DEG C with the speed of 15 ~ 25 DEG C/min again, be incubated 50 ~ 60 minutes; At the uniform velocity be warming up to 1150 DEG C with the speed of 15 ~ 25 DEG C/min, be incubated 10 ~ 20 minutes, when the temperature in stove to be annealed naturally cools to below 200 DEG C, come out of the stove, complete annealing process.
Another technical problem to be solved by this invention is realized by following technical scheme, a kind of annealing furnace of heavy caliber silica tube method for annealing described above, be characterized in, comprise furnace chamber, the monosymmetric of furnace chamber is provided with pivot arm, middle part and the furnace chamber outer side wall of pivot arm are hinged, furnace chamber between pivot arm vertically has opening for feed, opening for feed place is provided with lifting furnace door, one end of lifting furnace door and pivot arm is hinged, at the other end of described pivot arm, balancing weight is housed, high temperature brick is covered with in the bottom of described furnace chamber, the cotton layer of the high temperature be close to furnace chamber inwall is provided with in furnace chamber above high temperature brick, the inner side of the cotton layer of high temperature is provided with the some heating rods vertically arranged, 10 ~ 15cm is set between adjacent heating rod.
Technical problem to be solved by this invention can also be realized further by following technical scheme, in above-described annealing furnace, is provided with the limited block controlling pivot arm angle of rotation below described pivot arm on the furnace chamber sidewall of balancing weight.
Technical problem to be solved by this invention can also be realized further by following technical scheme, in above-described annealing furnace, described pivot arm comprises the upper arm and underarm that be arranged in parallel, furnace chamber wall inside upper arm and underarm is fixed with the vertical union lever arranged, one end and the union lever of upper arm are hinged, the other end of upper arm and the upper articulation of lifting furnace door, middle part and the union lever of described underarm are hinged, one end of underarm and the lower hinge of lifting furnace door, the other end of underarm is equipped with balancing weight.
The present invention, by carrying out cascade raising temperature to the silica tube of annealing furnace, ensure that the thermostability of silica tube; By establishing opening for feed on the sidewall of furnace chamber, opening for feed place establishes lifting furnace door, the bigbore silica tube of convenient placement or large size quartz products; By establishing pivot arm and balancing weight, the smooth open and close of easy of rise fire door; Establish high temperature brick and insulating cotton in furnace chamber, in guarantee furnace chamber, while good high temp effect, decrease the consumption of the energy; Whole device stopping property is good, and structure is simple, easy to operate, is specially adapted to the annealing process of heavy caliber silica tube.Compared with prior art, it is reasonable in design, easy to operate, saves the energy, is specially adapted to the annealing process of heavy caliber silica tube.
Accompanying drawing explanation
Fig. 1 is the structural representation of annealing furnace in the present invention;
Fig. 2 is the side-view of Fig. 1.
Embodiment
Referring to accompanying drawing, further describe concrete technical scheme of the present invention, so that those skilled in the art understands the present invention further, and do not form the restriction to its right.
See figures.1.and.2, a kind of heavy caliber silica tube method for annealing, is placed in annealing furnace by heavy caliber silica tube, the temperature in annealing furnace is at the uniform velocity warming up to 300 DEG C with the speed of 15 ~ 25 DEG C/min, be then incubated 50 ~ 60 minutes; At the uniform velocity be warming up to 600 DEG C with the speed of 15 ~ 25 DEG C/min again, be incubated 50 ~ 60 minutes; At the uniform velocity be warming up to 900 DEG C with the speed of 15 ~ 25 DEG C/min again, be incubated 50 ~ 60 minutes; At the uniform velocity be warming up to 1150 DEG C with the speed of 15 ~ 25 DEG C/min, be incubated 10 ~ 20 minutes, when the temperature in stove to be annealed naturally cools to below 200 DEG C, come out of the stove, complete annealing process.
A kind of annealing furnace of heavy caliber silica tube method for annealing described above, comprise furnace chamber 1, the monosymmetric of furnace chamber 1 is provided with pivot arm, middle part and furnace chamber 1 outer side wall of pivot arm are hinged, furnace chamber 1 between pivot arm vertically has opening for feed, opening for feed place is provided with lifting furnace door 5, lifting furnace door 5 is hinged with one end of pivot arm, at the other end of described pivot arm, balancing weight 7 is housed, high temperature brick 9 is covered with in the bottom of described furnace chamber 1, the cotton layer 6 of the high temperature be close to furnace chamber 1 inwall is provided with in furnace chamber 1 above high temperature brick 9, the inner side of the cotton layer 6 of high temperature is provided with the some heating rods 8 vertically arranged, 10 ~ 15cm is set between adjacent heating rod 8.
In described annealing furnace, below described pivot arm, on furnace chamber 1 sidewall of balancing weight 7, be provided with the limited block 10 controlling pivot arm angle of rotation, prevent the angle of rotation of pivot arm excessive, be difficult to open or close lifting furnace door 5.
In described annealing furnace, described pivot arm comprises the upper arm 4 and underarm 2 that be arranged in parallel, furnace chamber 1 wall inside upper arm 2 and underarm 4 is fixed with the vertical union lever 3 arranged, one end and the union lever 3 of upper arm 4 are hinged, the other end of upper arm 4 and the upper articulation of lifting furnace door 5, and middle part and the union lever 3 of described underarm 2 are hinged, one end of underarm 2 and the lower hinge of lifting furnace door 5, the other end of underarm 2 is equipped with balancing weight 7, easy to operate, laborsaving.
Whole device can be placed on the ground or in frame; When need anneal, pivot arm is under the effect of balancing weight 7 and pulling force, lifting furnace door 5 is lifted, heavy caliber silica tube or large size quartz products are placed in furnace chamber 1, again by pivot arm, lifting furnace door 5 is put down easily, just in time seal with opening for feed and close, energising, adopts above-mentioned method for annealing to anneal to the quartz products in furnace chamber 1; When needing naturally cooling, can be suitable lifting furnace door 5 is mentioned certain height, allow few freezing air enter in annealing furnace, slowly cool, while guarantee silica tube annealing effect, shorten temperature fall time.
Claims (1)
1. a heavy caliber silica tube method for annealing, is characterized in that: be placed in annealing furnace by heavy caliber silica tube, and the temperature in annealing furnace is at the uniform velocity warming up to 300 DEG C with the speed of 15 ~ 25 DEG C/min, is then incubated 50 ~ 60 minutes; At the uniform velocity be warming up to 600 DEG C with the speed of 15 ~ 25 DEG C/min again, be incubated 50 ~ 60 minutes; At the uniform velocity be warming up to 900 DEG C with the speed of 15 ~ 25 DEG C/min again, be incubated 50 ~ 60 minutes; At the uniform velocity be warming up to 1150 DEG C with the speed of 15 ~ 25 DEG C/min, be incubated 10 ~ 20 minutes, when the temperature in stove to be annealed naturally cools to below 200 DEG C, come out of the stove, complete annealing process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410071044.3A CN103896480B (en) | 2014-02-28 | 2014-02-28 | A kind of heavy caliber silica tube method for annealing and annealing furnace |
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| CN201410071044.3A CN103896480B (en) | 2014-02-28 | 2014-02-28 | A kind of heavy caliber silica tube method for annealing and annealing furnace |
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| CN103896480B true CN103896480B (en) | 2016-02-10 |
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| CN110818238A (en) * | 2019-12-11 | 2020-02-21 | 江苏通鼎光棒有限公司 | Annealing device and method for improving stress of preform |
| CN113772935A (en) * | 2021-08-30 | 2021-12-10 | 东海县安鸿石英科技有限公司 | Annealing method and equipment for large-diameter quartz tube |
| CN115927819B (en) * | 2022-11-23 | 2024-05-14 | 江苏亚太安信达铝业有限公司 | Annealing furnace for processing aluminum alloy material and annealing process thereof |
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| JPS5551726A (en) * | 1978-10-04 | 1980-04-15 | Toshiba Corp | Glass globe forming method |
| CN2744681Y (en) * | 2004-11-23 | 2005-12-07 | 中国建筑材料科学研究院 | Large-sized quartz glass annealing furnace |
| US7943539B2 (en) * | 2005-01-31 | 2011-05-17 | Kabushiki Kaisha Ohara | Glass-ceramics and method for manufacturing the same |
| CN101580890B (en) * | 2009-03-27 | 2010-12-08 | 南京宝色股份公司 | Trolley assembly annealing furnace |
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Address after: 222300 hump new area, Lianyungang, Jiangsu, Donghai County Patentee after: Jiangsu Hongwei quartz Technology Co., Ltd Address before: 222300 hump new area, Lianyungang, Jiangsu, Donghai County Patentee before: Lianyungang Hongwei Quarts Product Co., Ltd. |
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